Furnace with air



4 Sheets-Sheet l. W. MCCLAVE.y

ATTAGHMBNI'S.

Patented May 9, l

@HW um A ,\W-d *FIMWM f M A M ,N #WFH hin. f w W w (No Model.)

PURNAGB WITH A1B, STEAM, AND HYDR'OGARBON FUEL PBBDING "(No Model.)sheets-sheet 2. W. MGCLAVB.

G 3. N 9 I oo D E .IN wu.. 9 L Vv E N M N d 0 nu B t R n A 6 G t M aDND.. YN. HE DM NM` A M MT BA T n wY M u 1, m W mun 4 F m L JE,-l-Jlll-{EEEEEZN Tammo.. wAsHwcm 4 Sheets-Sheet 3.

(No Model.)

W. MQCLAVE. FURNAGE WITH AIR, STEAM, AND HYDROGARBON FUEL PBEM-NG tentedv/fBa mi Nonms PETERS co4. PNoTuLlmcL, wnsnmmu, n. c,

(No Model.) 4 Sheets-,Sheet 4.

Y W. MCQLAVE. .A FURNAGE WITH AIR, STEAM, AND HYDROCARBON FUEL PEEDINGATTAGHMENTS. Y No. 497,194. Patented May 9, 1-893.

IIJ: 55555:, ,Fue In w@ W; ,M5/ym-..

PETERS no., vnoaurno., wAsmnu'roN o c UNITED STATES PATENT OFFICE.,

vWILLIAM MCCLAVE, OF SORANTON, PENNSYLVANIA.

FURNACE WITH AIR, STEAM, AND HYDROCARBON FUEL FEEDING ATTACHMENTS.

SPECIFICATION forming part of Letters Patent No. 497,194, dated May 9,1893. Application liled December 24, 1892. Serial No. 456.261. (N0model-l V.To a/ZZ whom it may concern:

skilled in the art to which it appertains to make and use the same.

My invention consists in a combination with a boiler or other furnaceand a liquid hydrocarbon source of supply, as, for instance, a tank, ofnovel means, as will be hereinafter described, whereby, by the pressureof live steam and the condensed water thereof, the supply of liquidhydrocarbon is forced out of the source of supply or tank into a mixinglive steam branch pipe of the steam supply pipe, and said liquidhydrocarbon mixed with the live steam iii said branch pipe, and themixture forced into a circulating vaporizing coil or chamber, and steamsuperheated and the hydrocarbon vaporized; and from said steamsuperheating and vaporizing coil o i chamber, the hydrocarbon is forcedby the live steam to the air duct of a blower, and this mixture mixedwith air in the air duct of the blower, and thence introduced beneathand up through a mass of solid carbonaceous fuel on a grate or re bed ofa furnace, and this compound blast of air, superheated steam andhydrocarbon vapor thus utilized as an auxiliary fuel.

My invention also consists in a combination of pipes and cocks, as willbe hereinafter described, whereby, at will, either hydrocarbon unmixedwith steam can be fed out of the tank into the vaporizing coil orchamber by pressure of live steam from the boiler, aud condensed waterthereof; or the liquid hydrocarbon mixed with live steam can beintroduced into a steam superheating and liquid hydrocarbon vaporizingcoil or chamber, and thence passed in a mixed condition to the air ductof the blower and there mixed with air and passed beneath and up througha mass of solid carbonaceous fuel on a grate or supportingbed of thefurnace, and thus utilized asan auxiliary fuel.

In the accompanying drawings, Figure l represents my invention and aboiler furnace in side elevation. Fig. 2 is a cross section showing theboiler furnace in section and my invention in front elevation. Figs. 3and 4 are similar views to Figs. l and 2, but showing the invention asadapted for passing only the liquid hydrocarbon into the vaporizer,vaporizing it and from thence passing the vapor into a steam pipe andthence into a branch pipe wherein it is mixed with steam, and themixture passed to the air d uct and there mixed with air and passedbeneath and up through the solid carbonaceous fuel supporting bed ofafurnace.

A A in the drawings designate side walls; B, a bridge wall; C an ashpit; D a grate or otherappropriate fuel supporting bed; E a steamboiler; F a steam blower of aboiler furnaceofordinaiyconstruction.Theblower in the illustration given consists of a duct or tuyere Fandsteam jetting device G connected with a steam pipe H leading from theboiler E; but the discharging portion l-I4 of the steam pipe H may beentered into the duct of a fan blower as illustrated in Fig. 3 ofLetters Patent No. 485,820, granted to me November 8,1892, or in anyother practical way, whereby a mixture of air, steam and vapor of liquidhydrocarbon can be forced into the ash pit or underneath and up into amass of solid carbonaceous fuel on a grate or other appropriate fuelsupporting bed; or into any other suitable part of a boiler furnace andutilized as an auxiliary fuel for facilitating and promoting combustion.

In the drawings I have shown a mechanism comprising a tank I, waterchamber a, pipe I6 with cock 17, the filling means l with cock I2, orthe filling means I3 with cock I4, the liquid hydrocarbon conductingpipes K, K', K2 and the globe valve M and the vaporizing coil or chamber.I and jet nozzle d, but the construction and arrangement of the partsare the same as in my application for a patent tiled December 22, 1892,Serial No. 456,023, and claimed in said application, and therefore neednot be described herein more particularly. So, too, is the construct-ionof the steam pipe H, its branches I-l', H2, H3, H4, H5, H6, H7, globevalves L and N, and drip cock or valve s the same as in my aforesaidapplication for a patent, and claimed in said application, and thereforeneed not to be described herein more particularly.

In connection with the construction and IOO arrangement of parts shownand described in my aforesaid application or any other suit-` able meansadapted for supplying steam and hydrocarbon to the apparatus, twohorizontal transverse pipes 0 0', each provided with a globe cock 02,03, are employed for connecting the pipe H4 with the circulating steamsuperheating and hydrocarbon vaporizing coil or chamber J; also avertical pipe 05 provided with a globe valve 0G is provided forconnecting the vertical portions of the pipe K above and below thevaporizi'ng coil or chamber J; and globe valves 07, 08, are provided onsaid portions of the pipe K. A globe valve O4 is also provided on themixing pipe H4 between the horizontal transverse pipes O, O. Vith thisarrangement, it will be seen that when the globe valves L, M and N, andO2, 03 and 06, are opened, the liquid hydrocarbon and steam being thusallowed to circulate, the operation is as follows: The steam passingfrom pipe H along pipes H8, H5, H6, and H7 enters the water chamber abeneath the liquid hydrocarbon in tank I, and forces the liquidhydrocarbon out of the tank into the pipes K K', 05, K:2 and throughdischarging nozzle cl into live mixing branch pipe H4 where it is mixedwith the live steam, and then the mixture passes into a cross pipe O andthence into the liquid steam superheating and liquid hydrocarbonvaporizing coil or chamber, and through cross pipe 0 into the lower endof pipe H4 leading to air duct of blower. If it is desired to havesimply the liquid hydrocarbon pass through the vaporizingcoil or chamberthe cocks L, M and N, 08, O4 and 07 are opened, and the cocks 02, O3,04i are closed; and the operation is as follows: The liquid hydrocarbonsupplied from the tank as before described passes through pipe K intothe vaporizing chamber or coil, and therefrom through branch K2 intonozzle CZ, and into the live steam mixing pipe H4 and therefrom themixture passes to the air duct of the blower. In the event that thesupply of hydrocarbon becomes exhausted and it is not convenient toimmediately refill the tank I, the valves M, N, 02, 03 and 08 areclosed, the valves 04 and L being already opened, and the operation isas follows: The steam passes directly through pipes H, H2 and H3 intothe pipe H4 and thence to air duct of the blower where the steam mixeswith air, and the mixture passes to the fire when the cock M is used onthe apparatus.

Instead of manipulating all of the cocks mentioned to effect the lastmentioned operation, the cock 07 might remain open, as cocks M and 03being closed would prevent any steam from passing into the vaporizingcoil or chamber.

In Figs. 3 and ft, a slightly different construction and arrangement ofpipes and vaporizing coil or chamber to that shown in Figs. 1 and 2, isshown, whereby the liquid hydrocarbon mixed with live steam is passedthrough the mixing live steam pipe, thence to the steam superheating andhydrocarbon vaporizing coil or chamber, and thence to the air duct ofthe blower. In this arrangement, a pipe R and three cocks R', R2, R3 areprovided as shown, and on opening the cocks L, M and N and R R2, andclosing cock R3, the steam and hydrocarbon will flow through the mixingbranch pipe H4 into the steam superheating and hydrocarbon vaporizingcoil or chamber, thence into the air duct of the blower. In the event ofthe liquid hydrocarbon becoming exhausted in tank I, steam alone can bepassed directly to the blower duct by closing cocks M, R R2 and openingcock R3, whereupon the steam will pass directlyto the air duct of theblower.

As the cock M is simply provided as an additional regulator to the l'lowof the liquid hydrocarbon, its provision is not absolutely essential tothe working of the apparatus, as the flow of liquid hydrocarbon can beregulated by the cock N by regulating the pressure from the steamsupply. The cock M, may, therefore, be dispensed with.

What I claim as my invention is l. In a furnace, the combination of alive steam pipe H from a boiler or other source of steam supply, aliquid hydrocarbon conducting pipe K connected with a source of supply,a circulating heating coil or chamber J, apipe R connected with thesteam supply pipe H, a branch trap H2 connected with the steam supplypipe and with a live steam branchrpipe H4 of the steam supply pipe,cocks R', R4 and R3 applied respectively to the branch H2, to a branchbetween the circulating heating coil or chamberJ and to branch R, andalso to the branch R between the branch H8 and the cock R2; and valvesor cocks L and N, the cock L being on the steam pipe H and the cockNsuitably located on branch of supplystcam pipe, substantially asdescribed.

2. In a furnace the combination of asteam supply pipe from a boiler orother source of steam supply, a liquid hydrocarbon conducting pipeconnected to a source of supply, a circulating heating coil or chamberconnected with the hydrocarbon conducting pipe and with the steam supplypipe, the pipes O, O', 05, the pipes 0 and 0 being connected with thecirculating heating coil and the pipe H4, at points above and below thecock 04, and the one 05 to the hydrocarbon conducting pipe K and itsbranch K2 at point-s above and below the cocks 07,08, and globe valvesor cocks 02, 03, 04, 06, on pipes 0, 0 H4, 05, and valves or cocks L, N,the valve L being on the steam supply pipe and the valve N suitablylocated on branch of supply steam pipe, substantially as described.

In testimony whereof I hereunto affix my signature in presence of twowitnesses.

WILLIAM MCCLAVE. Witnesses:

OAssELL SnvnnANcE, 0. CALvERT HINEs.

IOS

IIO

